8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control So much light from just

So much light from just one luminaire

This switchable magnetic ballast is compatible with 1000W MH and HPS bulbs (make selection using the switch) and runs at 120V or 240V

Simple push button pH calibration

- Reflector Dimensions: 19

- 24" filter bed

8x18x1 Exact MERV 10 Plus Carbon AC Furnace Filters 6 Pack pest-and-disease-control So much light from justNordic Pure Custom MERV 10 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition